Home / 215,519.60-323,279.40-82,404.20

Finding the Fourth Proportional to 215,519.60, 323,279.40 and 82,404.20

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Solution

The fourth proportional to 215,519.60, 323,279.40 and 82,404.20 is: 123,606.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,519.60 : 323,279.40 = 82,404.20 : x
  2. Step 2: Convert to fraction form
    215,519.60/323,279.40 = 82,404.20/x
  3. Step 3: Cross multiply
    215,519.60x = 323,279.40 × 82,404.20
  4. Step 4: Simplify right side
    215,519.60x = 26,639,580,333.48
  5. Step 5: Solve for x
    x = 26,639,580,333.48/215,519.60
  6. Step 6: Final answer
    x = 123,606.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.